| dc.description.abstract | Skipjack tuna (Euthynnus affinis) is a fishery commodity highly susceptible
to quality degradation due to its high water and protein content, requiring
appropriate post-harvest handling. This study aimed to evaluate the effect of
natural layered packaging made from chitosan-alginate with the addition of brown
macroalgae (Turbinaria sp.) extract on the quality of skipjack tuna during different
storage periods. Quality parameters observed included physical (organoleptic,
color, yield), chemical (pH, TVB-N, peroxide value, histamine), and
microbiological (Total Plate Count and coliform) characteristics, measured on day
0, 4, 8, and 12 of storage. The study used a Completely Randomized Design (CRD)
with three replications and a Turbinaria sp. extract concentration of 1.5%. Based
on the research results, it was found that natural chitosan-alginate layer packaging
with the addition of Turbinaria sp. extract was able to slow down the rate of decline
in the quality of tuna fish. The ANOVA results showed that the storage period
treatment had a significantly different effect (Fcount> Ftable) on most quality
parameters such as pH, TVB-N, histamine, and TPC. While the organoleptic
parameters and peroxide numbers based on the Kruskal Wallis non-parametric test
showed that the storage period treatment had no significantly different effect (p
value>0.05). Thus, the use of this packaging has the potential as an
environmentally friendly packaging that is effective in maintaining the freshness
and safety of tuna fish meat during cold storage. | en_US |
